Routing method of wireless sensor network

Abstract

The invention discloses a routing method of a wireless sensor network. The method comprises that newly-powered-on sensor nodes obtain network addresses, up routing paths and down routing paths and become access nodes; every access nodes obtains the residual power capacity to perform network maintenance; the access nodes become powered-off nodes when powered off to a standby mode to perform network reconstruction. During the process that new nodes join in the network and the network reconstruction, due to the fact that every node does not need to storage the relevant information of the neighboring access nodes, a gateway takes charge of associating every node and the neighboring access nodes, and by means of path weight parameters, the gateway can evaluate the connecting quality of every path more easily, further, when the network changes, the gateway can generate optional paths, by comparing the path weight parameters, rapidly select out the optimal path which can balance flow distribution and energy consumption and timely issue the transmission path to a requested node for usage, the reliable operation of the network can be guaranteed and the service life of the network can be prolonged.

Description

technical field [0001] The invention relates to a wireless sensor network technology, in particular to a routing method for a wireless sensor network. Background technique [0002] In the process of supporting the development of the Internet of Things, wireless sensor networks (WSNs, WirelessSensorNetworks) that integrate distributed information collection, information transmission and information processing technologies play an important role. In the huge wireless sensor network, on the one hand, the sensor is the "sensory organ" for the machine to perceive the material world, which can sense heat, force, light, electricity, sound, displacement and other signals to provide information for the processing, transmission, analysis and feedback of the network system. The most primitive information; on the other hand, as traditional sensors gradually realize miniaturization, intelligence, informatization and networking, wireless sensor networks are being Advantages such as layin...

AI Technical Summary

Problems solved by technology

[0004] At present, most routing methods generate the shortest path based on the principle of the least number of hops, so some nodes will become bottlenecks because they are at the core routing position of data transmission, and a large amount of data transmission needs to be routed through these nodes

And these nodes will run out of power faster than other nodes, and eventually leave the network, causing part of the network to be paralyzed

Since the energy consumption is not balanced, although the nodes connected to the core routing still have a lot of power left, they can no longer transmit information to the destination, which also causes a waste of energy

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